When will my Onboard Credit be applied to my account? June 10, 2019 17:09 Updated Your onboard spending will be applied to your cruise account within 24 hours of boarding your cruise. Related articles What is my "up to $750 Onboard Credit" amount? How do I access my Cruises Only reservation? Should I purchase a beverage package from the cruise line? Can I bring alcohol or other beverages onboard? What is the Book Now & Pay Later promotion?